Metallic fastener.



GL W. MoGILL. METALLIG PASTENEB. APPLICATION nLn'n nan-9, me.

Patented Oct. f6, 1908 i a snafu-sum 1.

, 9 w. McGILL.. METALLIC FASTENEB. APPLICATION FILED KAY 9, 1908.

Patented Oct. 6, 1 90s.

- plied.

UNITED STATES GEORGE W. MOGILL,

or x.

m-mmro res'rnmsn'.

To all whom it may concern: j

Be it known that I, GEORGE MoGILL, a citizen of the United States,- and a resident of N o. 1 Madison avenue, in the borough of Manhattan, in the city, county and State of New York, have invented. certain new and useful Improvements in Metallic Fasteners, of which the following is a specification.

My invention consists ina metallic fas tener havingfor its object -the fastening together of sheets of paper, and for other light bindin and consists of a fastener fashioned from s ieet metal comprising two clampin members, occupying adjacent planes an adapted to be folded over one upon the other and to hold and clam between them the paper or other materials being bound, one of such members having its facing surface furnished with one or more depressions providing it sunken anvil-surfaces and the other member havin r its facing surface provided with prongs \vich, on the free ends of the members being brought toward each other in applving the fastener its-intended, will pierce the material being fastened and register in the depressions or sunken anvil surfaces of the other member, which anvilsurfaces from their formation will automatically dvfiect or bend the free ends of the prongs down oversaid material and house and guard them, both while the fastener is being applied and thereafter, as is hereinafter more' fully described.

In the accompanying drawing forming part of this s ecii'ication, and in which simi lar letters am numerals of refercnce'indieate corresponding parts, Figure 1, represents a plan view of the body of the fastener in flat or unfolded coi'idition. Fig. 2, is a perspective view of the folded fastener in condition for application to the use intended. Both these figurespresent the inner or'facing-sur face of the finished fastener. Fig. 3, is a seetional view of both the clamping members of the fastener applied as intended in fastening together several sheets of paper, the view being taken on line a: a: of Fig. 4, the latter figure being a top view of the fastener so ap- Figs. 5 to 8 inclusive, illustrate a modified construction of the fastener, Fig. 5, being a plan view of the modified fastener in flat or unfolded condition, similar to Fi 1. Fig. 6, is a erspectivc view of the modified fastener. ig. 7, is a; sectional view of the clamping members of the modified fastener,

. applied as intended, and is taken on the line Specification of Letters Patent Application filed May a, 1906, Serial-No. 316,868.

view of the its'parts into position. Fi ("10, is a similar Fig; 1 1, presents a longitudinalseetion of Fig. 10, taken on the line m m, of that fi ure, and Fig. 12, a similar sectional view-of the folded modified fastener applied-in"bindin sheets another modification in the construction of the fastener. Fig. 13, presenting a plan. view of the unfolded fastener, Fig. 1.4, a similar view showing the fastener partly folded, and Fig. 1.5, presentin a sectional view of the fastener taken on t e lin'e y y, of Fig. 14, and in finished fold and condition for application to the purposes intended. 1G to 2-3, inclusive present still another modifiedpirovidcd a duplex button configuration. Fig. 16, is a plan view of the metal blank providing the clamping members of the device. Fig. 17, is a plan view of the convex surface of the anvil section which in this modification of the fastener (ODsljillUilC-ll is shown non-integral with the rest of the device. Fig. in, is a top or outer view of the i i'orming Fig. 17, attached. Fig. .19, is a longitudinal section of Fi 1S, taken on the linc- ".r m, of that figure. ig. 20, is a perspee- 'tiv 0 view of the completed fastener, and Fig. 21. is a transverse sectional view of the completed fastener applied in bindin several sheets of material. Fig. 22, is another longitudinal section of the unfolded fastener showing both end members similarly collared and capped, and Fig. 23 of the connected edges of the fastener, so constructed when applied to use as intended.

In Figs. 1 to 5,in elusive, A and B, represent the clamping members of the fastener, and t, represents a unitaryneck connect-in r such members. The member A, is provider with two prongs 3, 3, connecting at their respective roots integrally with the body of t j-ecting outward in the same direction, and at right angles from such body, and with their inner surfaces faein each other. The niember B, is uovided-with two rentrant grooved 0r chambered anvils 7 struck or sunk therein Patented Oct-8,1908.

Iiigs. 9 to 12,-

construction of the fastener wherein ll is' is a transverse view- .view of the modified fastener before folding View showing a partial fol ing of-the parts:

of materiald I 'gs. 13, 14 and 1:5, ifiustrate unfolded fastener with the anvil section v deeper and-wider at one end than their at member near its opposite ends, and pro other end as shown in said figures and are seated in alinement with their shallow ends facing each other and substantially connect ing with each other thereat as shown 1n Fig. 3,

and providing concave deflecting anvil-surfaces, narrowing in width as their depth de creases, their deeper ends being seated aparta distancecorresponding with the distance apart of' the roots of the prongs, 3, 3.. The

toward each other as shown in Fig; 2, by

members A and-B, so fashioned, are broughtfolding-their connecting neck a, at its center or alongthe transverse dotted line, 1, comd pletingjthe fastener.

The fastener is applied as intended by placing the material 9, to be bound, between ll S clamping members A and B, and pressing these members together between the finger and thumb oi the o )crator, or'm other man nor, which causes t re. free end of the prongs.

3, 3, o f, the member to pierce and pass through i the material and into the chambered anvils 7, where, on coming n contact with the deep member B'. so

curved ends of theanvils they are deflected.

toward-each other over the opposite'surface' of the material being fastei'ied, and. are

housed-in the chambered 'anvils, and covered,

guarded and comealed by them beneath the Theprongs 3, 3, in Figs'l and 2 are showntransversely curved to give them increased strength without increase in weight of metal, and they "are set near enough to 1 toner shown in Figsifito 8,3'ihclusive, the clamping member B, is provided with an each other in the member A, to enable them to be pressed uponsimultaneonsly by the thumb of theoperator applying the fastening, in forcing them through the material Y beingbound and against the deflecting anvil snrifaces inthe member B, on the opposite sideof-the material. a

x In the modified construction of the fasadjoining seetion'o'f metal C, extending from struction, serving as a washer, 0! "bl1i,-- f0r the prongs 3. 3, in seeurelv locking andchtm b l i'i'together, with t e1 its outer edge-and substantially duplicating that member insize and form. The cham- "bered anvils 7, instead ofbeing' sunk in the member B, are-sunk in this section C, and the member B, is providedwiththe apertures 4,

4, nearits ends. The section C, is folded at the dottedlme over upon the member B, in manner'tobrin the curve'd'or deflecting ends 0f he chem ered anvilsjT" ever the" a )ertures 4, 4, in the member B, as shown in Ijig. 6, so thatthefree ends of the prongs 3,

3, on passing through the .mater1al being bound, as before d'escrihed, will enter. these.

apertures n nd he deflected down uponthe inner, or coveredsurface oftheinember B instead of directly upon the bound material, the section 0, of the memberB, in this cor-h ing the inh'riggrs ;A and I bound 'me if rid see poled on'is n fsiinnlianeo'usly.

The rongs 3, '3, in this construction have a flat ormation instead of being transversely curved as shown in Figs. 1 and 2.

In the modified construction of the {astoner shown in Figs. 9 to' 12, inclusive, the prongs 3, 3, of the member A, also have a; flat- )lade-hke formation instead of a transversely curved one and are set in adjoining, parallel planes and face in the same direction, instead of toward each other as in other figures of the drawing. An edge of each of the apertures 4, 4, in the member B, is provided with lips 5, 5, and the member is provided with a tubular riveting pillar 6; The section is provided with two chambered anvils. :7 7/ I corresponding in position therein with the )osition of the prongs 3, 3, in the member and such section 0-, is also provided with an eye,.8, at its free end. The foldingof the section C, at the line-2, over uponthe member B, brings the eye, 8, of the former, over the riveting pillar 6, of the latter, and the concave surfaces of the chambered anvils of the former over the apertures 4, 4,

in the latter, in which position they are permanently held by upsetting the top of the tubular pill'ar- 6, upon that part of the free end of the section 0., forming a flange for the eye, 8, as is show-n in 1() a1 1 d 11, and whereby these parts are permanently riveted together. v

The distance between the curved surfaces ,of the anvils 7. 7. above that part of the sur face of the member B 'coveredgby them should be suiiicient to admit of the deflection of the prongs 3. 3. respectively, over the lips forming. one side of the apertures 4 4. and down upon such, surface of the member B;

The object ofith'ese lips being to secure the 10v hers byproviding fulcrums, o1"- .rops, over tight; locking together of the clamping memwhich the prongs are. bent and (1e acted with their points bearing against the covered sur face of the-member B, as is shown in the seetional Fig. 12, of the applied device.

F'gs. 13, 14 and 15, show a further modiiicationm the construction of the fastenerconsisl'ing in the riveting pillar 6, and the eye, 8,, being omitted and the location of the apertures '4, 4, and clenching anvils 7, 7",

transposed, and such apertures and their lips and the prongs set 111 the respective members Band A, on lines oblique with the axis or longitudinal direction of. the device.

They also show the see-tirm C, folded and under the member-B, instead-of out-and over it as in the other lnotllllflil'COIlStI110h10IlS,'9J\(l a single anvil- 7", which by reason of its .area,--;andof. its position in the member B, is adapted to, receive, deflect, clench and house" th of: the dies or prongs 3", 3", within it ,In the mo ed ronstructi on of the fasener sh-(urn n Figs; 16 to 23, inclusive, theclamping members A and B, are nearly circular in configuration, and the periphery of the member B, is folded upward into a collar 10. The section C", of the member B, which provides the latter its clenching anvil surface, consists in a separate-round 'plece, or disk, of metal fashioned like a button-ca a, havmg a flanged periphery and within sue flange an annular concavo-convex' oove providin it a radial] defiectin anvi surface 7%. 'fiiis section the member B, with its concaves'urface, acing inward, which brings the outeredge of its ra ially deflecting anvil surface, or annular groove 7, slightly outside the outer edge of the rong-receiving apertures 4, 4, and in whic 1 position it is held by the edge of the collar 10, being turned overits periphery, or flan e 11, as shown in Figs. -1823,1nclusive. In ig. 22, which represents another longi' tudinal section of the fastener before being folded, the periphery of the member A, is shown provided with a collar similar to the member B, and with a separate metal section, or disk,vshaped similar to the section 0, of the member A, and inserted therein in similar manner, causing the outer surfaces of both members to present the same finished appearance. This stud-like appearance is shown more clearly in Fi 23, which presents an edge view of the fastener thus constructed applied in binding several sheets of material as intended.

The principal novel features of the fastener herein set forth over the fastener described and claimed in a com .ianion application for Letters Patent, filed y me April 1.2, 1906, and bearing Serial No. 311,224, is that the construction herein set forth provides the clamping members of the device with a plurality of fastening prongs, and with means for simultaneously receiving, deflecting and clenching such prongs, to the end of securely holding the" material bound and preventing the lateral shifting, swinging or other displacement of any sheet or other part of such material, which swinging displacement will occur when the penetrating part of the fastening consists of a single prong, and to prevent which'thc application of two fasteners is necessary.

Having thus fully described my invention what I claim as new and desire to secure by Letters Patent is 1 A metallic fastener of the character described consisting of two integrally connected clam ing members adapted to receivebetween tiieirfacing surfaces the material being fastened, one .member being provided with a plurality of-penetrating prongs and is place( within the collar 10 of the other member being provided with a lu the material being fastened and conceal,

guard and house them thereon on the free ends 'of said clamping members being pressed toward each, other.

2. A metallic fastener of the character described consisting of two integrally connected clamping members adapted to receive be-. tween their facing surfaces the material being fastened, one member beingprovided with a plurality of penetratin Y rongs and the other member being provi e with sunken and curved anvil surfaces opening in one direction and which automaticall register with said prongs and which bend t e free e nds of the latter down over the material being fastened and conceal, guard and house them thereon on .the free ends of said clam ing members being brought toward each 0t er.

3. A metallic fastener of the character described having one of its integrally connected clamping members provided with a plurality of penetrating prongs and having its other clamping member provided with a (plurality of slots to receive such prongs an with a plurality of rentrant cavities to each of which there is but one opening, such cavities providing said member with sunken anvils' aving curved faces and said member being being provided with a plurality of slots and v i with a plurality of depressions covering such slots and'the other member being provided with a plurality of penetrating prongs registering with such slotsand depressions, and said rongs being seated in their. member suflicientl close together to enable the thumb o the user to bear simultaneously upon the rootedends of both prongs in forcing the prongs throu h said material.

Signe at; River ale-on Hudson in the county of New York and State of New York this 14th day of April A. D. 1906.

v GEORGE W.- MoGILL.

. Witnesses:

, W. HARRY MoGILL,

Geo. A- CLARK. 

